Data volumes are growing (no surprise there). The trouble is that the complexity of data is also growing - along with the need to deal with this complexity in near-real time.
Storing up issues in the magnetic world
The up-front cost of storage should be a minor concern. What really matters is the fitness for purpose: will the chosen solution provide the support for storage workloads that the business requires? As magnetic storage hits the unfortunate wall of physics with its performance, the move to flash-based storage accellerates.